Improved refrigerator



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ANDREW J. CHASE, OE BOSTON, MASSACHUSETTS.

Letters Patent No. 101,58 2,'datel Apr/ill 5, 1870.

IMPROVED REFRIGERATOR.

he Schedule referred to in these Lettera Patent and making part of the same,

To all persons to whom these presents may come:

Be it known that I, ANDREW J. CHASE, of Boston, in the county of Suolk and State of Massachusetts, have invented a new and useful Improvement in Refrigatorsfor Keeping Vegetables, Meats, or other Articles in a (lool State; and I do hereby declare the said invention to be fully described as follows, refer'- ence .being had to the accompanying drawings making part of my specification, and of which- Figure l denotes a front elevation Figure 2, a sidevicw;

Figure 3, a longitudinal section and Figure 4, a transverse section of arefrigerator nrade in accordance with my invention.

rlhe nature of such invention consists in combining a. draught-flueor chimney with the refrigerator, and arranging and supplying the ice-chamber to the refrigerating-chamber, so that the air, after passing through The former chamber or in contact with Vice therein, may enter the bottom of the latter' chamber, and thence pass up through it and out of its top, and from thence into and through the chimney or draughttiue.

In the drawings- A denotes the refrigerator; and

B, the chimney or draught-flue, which is to extend above the refrigerator a snicient height to create a draught of air through such refrigerator, or its ice and refrigerating-chambers.

The refrigerator has an inner' case, a, and an outer case, b, with air spaces c o between the two, and surrounding the inner case either in whole or in part.

The refrigerating-chamber, or that in which the arrieles to be preserved or cooled are to be placed, as shown at d, as within the ease a, and as having the ice-receptacle or chamber e, disposed below it and opening into it by a series of holes or passages f f f.

Below the ice-chamber is a space, g, for' conduct-ing air to it, there being openings h h through the bottom ofthe said icc-chamber.

The said space g communicates with the side space o, which is separated from the space c' by a partition, Ai, and there are one or more openings ifmade through the side of the outer case, and into the space o, such opening or openings being provided with a slide or other proper valve I, the valve and the opening or openings constituting what is termed an air-register.

The refrigerating-chanrber has openings fm m leading out of its top and into the space e', from which a pipe, n, provided with a damper, o, is extended to a' draught-flue or chimney, p, the whole being as represented.

In the drawings a large opening, q, is exhibited as made through the floor of the refrigerating-chamber, and provided with a door, jr, such being to enable the ice-chamber to be supplied with ice as occasion may require. There is also a door, s, and opening, t, therefor, arranged in the front of the refrigerating-chamber, as in many other refrigerators.

The space or air-duct beneath the ice-chamber may have applied to it a cess-pool, or other proper means of allowing the escape of the water which may drip from the ice.

l an:Y well aware of most, if not all, the various refrigerators in use in which the ice Ais placed in the upper portions thereof, whereby the natural tendency of the cooled air to deseend,.and that of the warmer air to rise, are productive of a circulation of air through the refrigerating-chamber.

When the ice is placed in the upper part of a refrigerator' it has the disadvantage of being in the portion where the air is generally at a'high'er temperature than that at the bottom of the refrigerator; consequently the ice is more liable to become melted, and

to be affected by whatever may be in the refrigerating chamber. There is also the danger of flooding the interior of the refrigerator, or the.refrigerating-chamber, in ease of stoppage of the waste-duct, the same when occuring rendering the walls dampened, liable to mold, or become more or less acid.

In my refrigerator all these difficulties are avoided, as the air after entering the space o descends therein, and passes into the space. beneath the ice-chamber, thence up through the latter and against the ice; when therein and becoming cooled has a tendency to remain in contact with the ice, but as the articles in the refrigerating-charnber will 'raise the air therein 'to a higher-tem perature, it will rise and flow into the draughtlue, the cooler air also rising and taking the place of the discharged air. The draught-flue will create a powerful upward current, such as will overcome the tendency of the cool air to remain about the ice, and

therefore such air will be drawn upward and circulal tion of it will be effected through the refrigerator, as I haveproved after numerous experiments. Thus it will be seen that by means of the chimney or draughtflue, air will be drawn from below and through theicechamber', and thence up through the refrigeratingchamber, whereby the temperature of the latter will be uniformly maintained, and all the vapors and noxious gases will be carried ofi` by the draught-flue. By having the refrigerating-chamber o ver the ice-chamber all danger of flooding the latter is avoided.

1n my invention the iee-chamberneoessarily has the air-duct beneath it in order that the air maybe cooled by contact with the ice before passingthrough the bottom of the re'igerating-chamber. This may be the case should the ice-chamber bedisposed alongside of .I

the refrigerating-chamber, or at .a distance therefrom, as I have contemplated making refrigerators.

I claim as my inveutionv The arrangement of the ice -ehamber 4directly over the air-receiving duct, or between such and the refrigeratiug-ohamber, and combining with the latterthe draught-flue and holes of induction and exit of the air, the whole beingr substantially as specified.-

Also, the arrangement of the separate air-spaces c c', the ice-chamber, 'the refrigerating-chamber, the air-duct below the ieefchamber, the draught-chimney and the damper and register, the said ice and refrigerating-chalmbers under such arrangement being provided with induction and eduction-openings as described, and nrrzmgedfso that the ice-chamber shall be beneath the refrigerating-chamber, and over the air-ductextendd underneath the bottom thereof'. n

A. J. CHASE. f Witnesses: v

R. H. EDDY, J. R. SNOW. 

